Hello all, This is my first post and hope I am posting in the correct location. First off I am new to the Home Theater scene. I have decided that I want to start out with one of the HTB systems due to the fact I would hate to spend $3,000 plus and feel I wasted my money. I am looking at the Kenwood HTB-505 system. I have read a few posts and I like the idea I can upgrade components if I wish down the road if I so decide. Is there a system close to the same price and better? My main question is about the placement of the rear speakers. From the little I know of surround sound systems, I thought these speakers went behind you facing forward. When did this change to them located to the left and right of the main seat facing each other and why? I will not be able to mount the speakers on the left and right wall of the room I am setting up the system in. Will it matter if the go on the wall behind the main seat in the room? Should they face forward? Should I try to face them at each other even though they are mounted to the same wall? Should I angle them in towards the center of the room? Also, the room is ceramic tile wall to wall. Will this be a problem with poor sound quality? I read on a post I should buy a SPL meter and AVIA setup DVD to set speaker levels and locations. Is this worth the $100 for a $500 system? Any information would help a great deal. Thanks in advance!!!